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[infiniband] Always create an SMA and a GMA
This commit is contained in:
Michael Brown
@@ -1,319 +0,0 @@
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/*
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* Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <byteswap.h>
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#include <gpxe/infiniband.h>
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#include <gpxe/ib_gma.h>
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#include <gpxe/ib_sma.h>
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/**
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* @file
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*
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* Infiniband Subnet Management Agent
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*
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*/
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/**
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* Get node information
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*
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* @v gma General management agent
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* @v mad MAD
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* @ret rc Return status code
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*/
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static int ib_sma_get_node_info ( struct ib_gma *gma,
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union ib_mad *mad ) {
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struct ib_device *ibdev = gma->ibdev;
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struct ib_node_info *node_info = &mad->smp.smp_data.node_info;
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memset ( node_info, 0, sizeof ( *node_info ) );
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node_info->base_version = IB_MGMT_BASE_VERSION;
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node_info->class_version = IB_SMP_CLASS_VERSION;
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node_info->node_type = IB_NODE_TYPE_HCA;
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node_info->num_ports = ib_get_hca_info ( ibdev, &node_info->sys_guid );
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memcpy ( &node_info->node_guid, &node_info->sys_guid,
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sizeof ( node_info->node_guid ) );
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memcpy ( &node_info->port_guid, &ibdev->gid.u.half[1],
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sizeof ( node_info->port_guid ) );
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node_info->partition_cap = htons ( 1 );
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node_info->local_port_num = ibdev->port;
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return 0;
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}
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/**
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* Get node description
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*
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* @v gma General management agent
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* @v mad MAD
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* @ret rc Return status code
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*/
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static int ib_sma_get_node_desc ( struct ib_gma *gma,
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union ib_mad *mad ) {
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struct ib_device *ibdev = gma->ibdev;
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struct ib_node_desc *node_desc = &mad->smp.smp_data.node_desc;
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struct ib_gid_half *guid = &ibdev->gid.u.half[1];
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memset ( node_desc, 0, sizeof ( *node_desc ) );
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snprintf ( node_desc->node_string, sizeof ( node_desc->node_string ),
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"gPXE %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x (%s)",
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guid->bytes[0], guid->bytes[1], guid->bytes[2],
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guid->bytes[3], guid->bytes[4], guid->bytes[5],
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guid->bytes[6], guid->bytes[7], ibdev->dev->name );
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return 0;
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}
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/**
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* Get GUID information
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*
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* @v gma General management agent
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* @v mad MAD
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* @ret rc Return status code
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*/
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static int ib_sma_get_guid_info ( struct ib_gma *gma,
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union ib_mad *mad ) {
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struct ib_device *ibdev = gma->ibdev;
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struct ib_guid_info *guid_info = &mad->smp.smp_data.guid_info;
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memset ( guid_info, 0, sizeof ( *guid_info ) );
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memcpy ( guid_info->guid[0], &ibdev->gid.u.half[1],
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sizeof ( guid_info->guid[0] ) );
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return 0;
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}
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/**
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* Get port information
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*
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* @v gma General management agent
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* @v mad MAD
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* @ret rc Return status code
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*/
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static int ib_sma_get_port_info ( struct ib_gma *gma,
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union ib_mad *mad ) {
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struct ib_device *ibdev = gma->ibdev;
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struct ib_port_info *port_info = &mad->smp.smp_data.port_info;
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memset ( port_info, 0, sizeof ( *port_info ) );
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memcpy ( port_info->gid_prefix, &ibdev->gid.u.half[0],
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sizeof ( port_info->gid_prefix ) );
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port_info->lid = ntohs ( ibdev->lid );
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port_info->mastersm_lid = ntohs ( ibdev->sm_lid );
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port_info->local_port_num = ibdev->port;
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port_info->link_width_enabled = ibdev->link_width;
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port_info->link_width_supported = ibdev->link_width;
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port_info->link_width_active = ibdev->link_width;
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port_info->link_speed_supported__port_state =
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( ( ibdev->link_speed << 4 ) | ibdev->port_state );
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port_info->port_phys_state__link_down_def_state =
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( ( IB_PORT_PHYS_STATE_POLLING << 4 ) |
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IB_PORT_PHYS_STATE_POLLING );
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port_info->link_speed_active__link_speed_enabled =
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( ( ibdev->link_speed << 4 ) | ibdev->link_speed );
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port_info->neighbour_mtu__mastersm_sl =
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( ( IB_MTU_2048 << 4 ) | ibdev->sm_sl );
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port_info->vl_cap__init_type = ( IB_VL_0 << 4 );
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port_info->init_type_reply__mtu_cap = IB_MTU_2048;
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port_info->operational_vls__enforcement = ( IB_VL_0 << 4 );
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port_info->guid_cap = 1;
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return 0;
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}
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/**
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* Set port information
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*
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* @v gma General management agent
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* @v mad MAD
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* @ret rc Return status code
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*/
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static int ib_sma_set_port_info ( struct ib_gma *gma,
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union ib_mad *mad ) {
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struct ib_device *ibdev = gma->ibdev;
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const struct ib_port_info *port_info = &mad->smp.smp_data.port_info;
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int rc;
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memcpy ( &ibdev->gid.u.half[0], port_info->gid_prefix,
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sizeof ( ibdev->gid.u.half[0] ) );
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ibdev->lid = ntohs ( port_info->lid );
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ibdev->sm_lid = ntohs ( port_info->mastersm_lid );
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ibdev->sm_sl = ( port_info->neighbour_mtu__mastersm_sl & 0xf );
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if ( ( rc = ib_set_port_info ( ibdev, port_info ) ) != 0 ) {
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DBGC ( ibdev, "IBDEV %p could not set port information: %s\n",
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ibdev, strerror ( rc ) );
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mad->hdr.status =
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htons ( IB_MGMT_STATUS_UNSUPPORTED_METHOD_ATTR );
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}
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return ib_sma_get_port_info ( gma, mad );
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}
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/**
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* Get partition key table
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*
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* @v gma General management agent
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* @v mad MAD
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* @ret rc Return status code
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*/
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static int ib_sma_get_pkey_table ( struct ib_gma *gma,
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union ib_mad *mad ) {
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struct ib_device *ibdev = gma->ibdev;
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struct ib_pkey_table *pkey_table = &mad->smp.smp_data.pkey_table;
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memset ( pkey_table, 0, sizeof ( *pkey_table ) );
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pkey_table->pkey[0] = htons ( ibdev->pkey );
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return 0;
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}
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/**
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* Set partition key table
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*
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* @v gma General management agent
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* @v mad MAD
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* @ret rc Return status code
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*/
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static int ib_sma_set_pkey_table ( struct ib_gma *gma,
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union ib_mad *mad ) {
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struct ib_device *ibdev = gma->ibdev;
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struct ib_pkey_table *pkey_table = &mad->smp.smp_data.pkey_table;
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ibdev->pkey = ntohs ( pkey_table->pkey[0] );
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return ib_sma_get_pkey_table ( gma, mad );
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}
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/** List of attribute handlers */
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struct ib_gma_handler ib_sma_handlers[] __ib_gma_handler = {
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{
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.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
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.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
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.class_version = IB_SMP_CLASS_VERSION,
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.method = IB_MGMT_METHOD_GET,
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.resp_method = IB_MGMT_METHOD_GET_RESP,
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.attr_id = htons ( IB_SMP_ATTR_NODE_INFO ),
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.handle = ib_sma_get_node_info,
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},
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{
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.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
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.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
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.class_version = IB_SMP_CLASS_VERSION,
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.method = IB_MGMT_METHOD_GET,
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.resp_method = IB_MGMT_METHOD_GET_RESP,
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.attr_id = htons ( IB_SMP_ATTR_NODE_DESC ),
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.handle = ib_sma_get_node_desc,
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},
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{
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.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
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.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
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.class_version = IB_SMP_CLASS_VERSION,
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.method = IB_MGMT_METHOD_GET,
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.resp_method = IB_MGMT_METHOD_GET_RESP,
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.attr_id = htons ( IB_SMP_ATTR_GUID_INFO ),
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.handle = ib_sma_get_guid_info,
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},
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{
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.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
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.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
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.class_version = IB_SMP_CLASS_VERSION,
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.method = IB_MGMT_METHOD_GET,
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.resp_method = IB_MGMT_METHOD_GET_RESP,
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.attr_id = htons ( IB_SMP_ATTR_PORT_INFO ),
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.handle = ib_sma_get_port_info,
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},
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{
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.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
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.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
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.class_version = IB_SMP_CLASS_VERSION,
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.method = IB_MGMT_METHOD_SET,
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.resp_method = IB_MGMT_METHOD_GET_RESP,
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.attr_id = htons ( IB_SMP_ATTR_PORT_INFO ),
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.handle = ib_sma_set_port_info,
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},
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{
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.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
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.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
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.class_version = IB_SMP_CLASS_VERSION,
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.method = IB_MGMT_METHOD_GET,
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.resp_method = IB_MGMT_METHOD_GET_RESP,
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.attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE ),
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.handle = ib_sma_get_pkey_table,
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},
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{
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.mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED,
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.mgmt_class_ignore = IB_SMP_CLASS_IGNORE,
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.class_version = IB_SMP_CLASS_VERSION,
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.method = IB_MGMT_METHOD_SET,
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.resp_method = IB_MGMT_METHOD_GET_RESP,
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.attr_id = htons ( IB_SMP_ATTR_PKEY_TABLE ),
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.handle = ib_sma_set_pkey_table,
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},
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};
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/**
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* Create SMA
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*
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* @v sma Subnet management agent
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* @v ibdev Infiniband device
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* @v op Subnet management operations
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* @ret rc Return status code
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*/
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int ib_create_sma ( struct ib_sma *sma, struct ib_device *ibdev ) {
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int rc;
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/* Initialise GMA */
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if ( ( rc = ib_create_gma ( &sma->gma, ibdev, IB_QPT_SMA ) ) != 0 ) {
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DBGC ( sma, "SMA %p could not create GMA: %s\n",
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sma, strerror ( rc ) );
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goto err_create_gma;
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}
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/* If we don't get QP0, we can't function */
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if ( sma->gma.qp->qpn != IB_QPN_SMA ) {
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DBGC ( sma, "SMA %p on QPN %lx, needs to be on QPN 0\n",
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sma, sma->gma.qp->qpn );
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rc = -ENOTSUP;
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goto err_not_qp0;
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}
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return 0;
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err_not_qp0:
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ib_destroy_gma ( &sma->gma );
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err_create_gma:
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return rc;
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}
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/**
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* Destroy SMA
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*
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* @v sma Subnet management agent
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*/
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void ib_destroy_sma ( struct ib_sma *sma ) {
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ib_destroy_gma ( &sma->gma );
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}
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